A joint structure on the b-pillar of a two-door sports car

Abstract

The invention discloses a B pillar upper joint structure of a coupe. The connecting part of a B pillar, an A pillar, a C pillar and a top cover cross beam comprises a four-way joint; the four-way joint comprises four joint curve surfaces positioned at the end part of the four-way joint; the four joint curve surfaces can correspondingly cover one ends connected to the A pillar, the B pillar, the Cpillar and the top cover cross beam; a plurality of supporting plates are arranged on the external side of the four-way joint; external reinforcing plates are arranged on the side surfaces, facing towards the four-way joint, of the A pillar, the C pillar and the top cover cross beam; and the supporting plates are connected with the external reinforcing plates and the four-way joint. The B pillar upper joint structure of the coupe has the advantages that the C pillar, the B pillar, the A pillar and the top cover cross beam are connected to form an integrated structure to guarantee smooth transition and through profile of the connecting part of the C pillar, the B pillar, the A pillar and the top cover cross beam; and therefore, the force transmission path is more smooth; and meanwhile, stamping requirements are satisfied, and the part accuracy is guaranteed; the number of lapped parts is reduced, the welding accuracy is improved, the manufacturing difficulty of other parts is reduced, the rigidity of the integral structure is enhanced; and the B pillar upper joint structure of the coupe is beneficial for a coupe body to finish automobile lightweight design.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a joint structure on the B-pillar of a two-door sports car. Background technique [0002] In the prior art, the B-pillar of an automobile includes an inner panel and an outer panel that are arranged oppositely. The inner panel and the outer panel are welded. The lower area of ​​the B-pillar is stronger than the upper area of ​​the B-pillar. Therefore, the anti-intrusion ability of the upper area of ​​the B-pillar is poor, and the upper area of ​​the B-pillar is easy to invade the driving space. The pillars are connected, and different joints need to be arranged at the positions where the A-pillar and the B-pillar, the A-pillar and the C-pillar, and the B-pillar and the C-pillar are connected, which increases the load on the B-pillar. [0003] Due to the shape of a certain two-door sports car, the position of the joint on the B-pillar of the traditional four-door model ...

AI Technical Summary

Problems solved by technology

[0006] The present invention overcomes the problem that the B-pillar upper joint structure in the prior art has poor integrity and cannot meet the styling requirements of a two-door sports car, and provides a B-pillar upper joint structure for a two-door sports car, which is suitable for mass-produced two-door sports cars. For sports cars, it can reduce the number of overlapping parts, improve the welding accuracy of the B-pillar and other parts on the two-door sports car, increase the strength of the joint, and improve the integrity of the B-pillar and other connecting structures

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